when i pressed the home button just to wake the screen, the screen didn't respond.. only the side buttons lid..

the screen remained black after the second press too.. then i pressed the power button once and the screen woke..

the thing was that when i pressed the power button after this incident the home screen game me a third option, apart from emergency calls (left) and alternative password (right), Unlock via Google placed to the middle..

this happened also today twice..

Any suggestions on this ?? did anyone encounter this ??

please note that i didn't use any other locking method except fingerprint scanner and the home button responds fine in any other case.. Thanx..

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